How to obtain contacts through a US number query and generate a VCF file?

Only by organically combining advanced tools, optimized processes, and a professional team can the maximum value of WS screening software be continuously realized.

For cross-border merchants doing WS marketing, the biggest headache is the "invalid number trap": a list of numbers purchased at great expense might only receive a reply to 10 out of 1000 messages sent, with over 60% being invalid or cancelled numbers.Blindly pushing content to risky accounts resulted in the newly established WS account being banned within 3 days, causing all initial investments to go down the drain.

In fact, professional WS number filtering software is the key to solving these problems: WS number filtering software can quickly eliminate invalid numbers, ensuring that every penny of marketing expenditure is spent effectively.The ITG Global Screening WS account filtering software offers dual protection of "precise filtering + safe account nurturing." Even complete beginners can easily use the WS account filtering software to improve efficiency and double their marketing results.In 2025, WS platform upgraded its risk control measures. Invalid numbers not only waste money but may also trigger account bans. WS number filtering software is the "cost protector" for merchants.

After the filtering is completed, a detailed report is generated, showing the number of valid numbers, the percentage of invalid number types (empty numbers 20%, virtual numbers 5%, etc.), the percentage of target customers, and other data, making the results clear at a glance;If your WS account isn't properly nurtured, all your efforts in screening customers will be wasted. Use the account nurturing function of this WS account screening software to make new accounts as stable as old ones.

With cross-border marketing costs remaining high, instead of wasting money on invalid numbers, it's better to use ITG's global filtering WS number filtering software to precisely break through the bottleneck.

It can not only quickly eliminate invalid numbers and target precise customers, but also ensure account security, so that every investment will be worthwhile.The system uses customized and refined screening modes to quickly screen potential customers, ensuring precise advertising and social media engagement.

The batch export function simplifies multi-platform account management, enabling rapid implementation of promotional tasks and improving execution efficiency.The cloud control system combines self-screening, proxy screening, and refined screening modes to efficiently manage bulk accounts and improve team operational efficiency.

In today's fierce digital marketing competition, countless companies face a common dilemma: carefully planned marketing campaigns and huge investments of resources ultimately fail like a pebble thrown into the sea.Many teams are still using the traditional and inefficient TG screening method, ignoring the key role of systematic tools.